./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_02_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e83779e870c5df7283e67466f98073debb41c176396e4dd8d3d4b1cd532d7390 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:12:38,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:12:38,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 02:12:38,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:12:38,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:12:38,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:12:38,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:12:38,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:12:38,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:12:38,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:12:38,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:12:38,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:12:38,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:12:38,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:12:38,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:12:38,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:12:38,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:12:38,585 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:12:38,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:12:38,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:12:38,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:12:38,588 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:12:38,588 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:12:38,589 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:12:38,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:12:38,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:12:38,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:12:38,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:12:38,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:12:38,592 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:12:38,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:12:38,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:12:38,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e83779e870c5df7283e67466f98073debb41c176396e4dd8d3d4b1cd532d7390 [2023-12-03 02:12:38,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:12:38,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:12:38,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:12:38,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:12:38,824 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:12:38,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_02_good.i [2023-12-03 02:12:41,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:12:41,912 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:12:41,913 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_02_good.i [2023-12-03 02:12:41,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/data/f687f5211/94192d7409ba443c97e894fdbdef372c/FLAG4b6ca2044 [2023-12-03 02:12:41,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/data/f687f5211/94192d7409ba443c97e894fdbdef372c [2023-12-03 02:12:41,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:12:41,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:12:41,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:12:41,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:12:41,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:12:41,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:12:41" (1/1) ... [2023-12-03 02:12:41,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527fef43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:41, skipping insertion in model container [2023-12-03 02:12:41,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:12:41" (1/1) ... [2023-12-03 02:12:42,042 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:12:42,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:12:42,867 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:12:42,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:12:43,136 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:12:43,136 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:12:43,137 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:12:43,137 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:12:43,145 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:12:43,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43 WrapperNode [2023-12-03 02:12:43,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:12:43,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:12:43,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:12:43,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:12:43,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,205 INFO L138 Inliner]: procedures = 502, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2023-12-03 02:12:43,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:12:43,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:12:43,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:12:43,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:12:43,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:12:43,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:12:43,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:12:43,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:12:43,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:12:43,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:12:43,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:12:43,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:12:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 02:12:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 02:12:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:12:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:12:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:12:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:12:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:12:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:12:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:12:43,444 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:12:43,446 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:12:43,592 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:12:43,636 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:12:43,636 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-03 02:12:43,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:12:43 BoogieIcfgContainer [2023-12-03 02:12:43,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:12:43,639 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:12:43,639 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:12:43,647 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:12:43,647 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:12:43" (1/1) ... [2023-12-03 02:12:43,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:12:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:43,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2023-12-03 02:12:43,709 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2023-12-03 02:12:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:12:43,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:12:43,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:12:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:12:43,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:12:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 52 transitions. [2023-12-03 02:12:43,988 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2023-12-03 02:12:43,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 02:12:43,989 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:12:43,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:12:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:12:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:12:44,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 43 transitions. [2023-12-03 02:12:44,096 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-12-03 02:12:44,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:12:44,097 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:12:44,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:12:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:12:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:12:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:44,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 37 transitions. [2023-12-03 02:12:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-12-03 02:12:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 02:12:44,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:12:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:12:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:12:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:12:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 32 states and 36 transitions. [2023-12-03 02:12:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-12-03 02:12:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:12:44,330 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:12:44,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:12:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:12:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:12:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 34 transitions. [2023-12-03 02:12:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-12-03 02:12:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 02:12:44,426 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:12:44,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:12:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:12:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:12:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:12:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 33 transitions. [2023-12-03 02:12:44,556 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-12-03 02:12:44,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 02:12:44,557 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-12-03 02:12:44,566 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 02:12:44,600 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:12:44,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:12:44 ImpRootNode [2023-12-03 02:12:44,605 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:12:44,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:12:44,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:12:44,606 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:12:44,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:12:43" (3/4) ... [2023-12-03 02:12:44,608 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 02:12:44,611 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-03 02:12:44,611 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-03 02:12:44,616 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-12-03 02:12:44,616 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-03 02:12:44,617 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 02:12:44,617 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:12:44,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:12:44,709 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 02:12:44,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:12:44,710 INFO L158 Benchmark]: Toolchain (without parser) took 2751.40ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 96.1MB in the beginning and 68.4MB in the end (delta: 27.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,711 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:12:44,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1185.55ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 96.1MB in the beginning and 100.3MB in the end (delta: -4.2MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.24ms. Allocated memory is still 169.9MB. Free memory was 100.3MB in the beginning and 97.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,712 INFO L158 Benchmark]: Boogie Preprocessor took 29.86ms. Allocated memory is still 169.9MB. Free memory was 97.0MB in the beginning and 95.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,713 INFO L158 Benchmark]: RCFGBuilder took 401.50ms. Allocated memory is still 169.9MB. Free memory was 95.2MB in the beginning and 78.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,713 INFO L158 Benchmark]: CodeCheck took 966.08ms. Allocated memory is still 169.9MB. Free memory was 78.1MB in the beginning and 73.7MB in the end (delta: 4.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,713 INFO L158 Benchmark]: Witness Printer took 103.96ms. Allocated memory is still 169.9MB. Free memory was 73.7MB in the beginning and 68.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 02:12:44,715 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 50 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 155 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 762 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 26/26 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1646]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1185.55ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 96.1MB in the beginning and 100.3MB in the end (delta: -4.2MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.24ms. Allocated memory is still 169.9MB. Free memory was 100.3MB in the beginning and 97.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.86ms. Allocated memory is still 169.9MB. Free memory was 97.0MB in the beginning and 95.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.50ms. Allocated memory is still 169.9MB. Free memory was 95.2MB in the beginning and 78.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 966.08ms. Allocated memory is still 169.9MB. Free memory was 78.1MB in the beginning and 73.7MB in the end (delta: 4.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 103.96ms. Allocated memory is still 169.9MB. Free memory was 73.7MB in the beginning and 68.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 02:12:44,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_092b3875-9a5d-4ff4-a5e3-6cdbf5627b5d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE